نتایج جستجو برای: biochronology

تعداد نتایج: 116  

Journal: :Comptes Rendus Palevol 2022

The Cooper’s D deposit has been dated by U-Pb at a maximum age of 1.37 Ma ± 0.113 and yielded seven Hominini remains, six them are attributed to the Southern African endemic species Paranthropus robustus Broom, 1938. However, taxonomic composition faunal assemblage recovered this site, especially ruminants, remains poorly understood. This paper updates previous palaeontological biochronological...

Journal: :Geosciences 2021

We provide a biochronology of Jurassic planktonic foramininfera, using first order linkage to ammonite and nannofossil stratigraphy geochronology. This enigmatic understudied group microfossils occurred from middle Toarcian through Tithonian time, ~180 ~143 Ma; its origin is unknown. There are three genera: Globuligerina, Conoglobigerina Petaloglobigerina. The genus with smooth pustulose test s...

Journal: :Geodiversitas 2022

Rodents from the Eocene locality of Cos (Tarn-et-Garonne, Quercy, France). Comparison with rodents localities transition lower Eocene/middle Eocene. This article describes new fauna Quercy) whose primates were first studied and published (Godinot et al. 2021) Among these poorly diversified rodent assemblage, smallest species is assigned to Eogliravus wildi. All Hartenberger, 1971 are redescribe...

2001
Michel Brunet

Five palaeontological and geological field missions carried out in the Djourab Desert (Northern Chad) by the French-Chadian Paleoanthropological Mission (MPFT) have resulted in the discovery of about one hundred continental Mio-Plio-Pleistocene vertebrates sites. Until now three areas have been intensively collected: Koro Toro (KT), Kollé (KL) and Kossom Bougoudi (KB). All the fossils come from...

2006
ANDREW B. HECKERT SPENCER G. LUCAS

A long-term goal of vertebrate biostratigraphers is to construct a microvertebrate biostratigraphy for lower Mesozoic rocks that complements and extends the mammal-based biostratigraphy in place for Upper Cretaceous-Recent deposits. Here we report substantial progress toward achieving this goal based on the distribution of microvertebrate fossils in the Upper Triassic Chinle Group of the wester...

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